C3H2(g) + 5 O2(g) 3 CO2(g) +4 H2O(g) If 0.678 g of propane (C3Hg) are used in the reaction, how many liters of oxygen gas are required to react completely at STP?
Molar mass of C3Hg = 44.11 g/

This active feature of earth's crust in building mountain ranges as well as islands. this feature is a a) cavern. b) earthquake. c) mountain. d) volcano.

Which characteristic of water it form droplets? a. low specific heat b. nonpolar structure c. high surface tension d. ability to dissolve substances

Oil rich countries in the middle east cover about 4% of earths total land area but prossess about 48% of the worlds known oil reserves what is the main reason for high concentration of reserves in this part of the world